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// Boost.Geometry
// Copyright (c) 2021, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
#define BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/core/static_assert.hpp>
namespace boost { namespace geometry
{
namespace strategies { namespace distance
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
template <typename Strategies>
struct comparable
: public Strategies
{
comparable() = default;
explicit comparable(Strategies const& strategies)
: Strategies(strategies)
{}
template <typename Geometry1, typename Geometry2>
auto distance(Geometry1 const& g1, Geometry2 const& g2) const
{
return strategy::distance::services::get_comparable
<
decltype(Strategies::distance(g1, g2))
>::apply(Strategies::distance(g1, g2));
}
};
template <typename Strategies>
inline comparable<Strategies> make_comparable(Strategies const& strategies)
{
return comparable<Strategies>(strategies);
}
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
}} // namespace strategies::distance
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_STRATEGIES_DISTANCE_COMPARABLE_HPP
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